As of January 26, 2021, all travelers entering the United States by air are required to have a negative COVID-19 test within three days of travel OR proof of a COVID-19 infection within the past 90 days that the person has recovered from. You can see the full order here: International Testing Order.
If you have tested positive in Georgia for COVID-19 in the past 90 days and require a signed letter from the Georgia Department of Public Health (DPH) that you have been cleared for travel, please visit: International Travel Letter.